excretion
/ekˈskriːʃən/noun
mass noun
1- (in living organisms and cells) the process of eliminating or expelling waste matter（生物体和细胞中的）排泄; 分泌。
1.1
- count noun a product of this process排泄物; 分泌物：
bodily excretions.
身体的排泄物。
词源
early 17th cent.: from French excrétion or Latin excretio（n-）, from excernere 'sift out' （see EXCRETE）.